Two safeties and two cornerbacks paid free-agent visits Tuesday to Rams Park. But none of the four players were signed.

The safeties were Michael Lewis, a nine-year veteran most recently with San Francisco, and Gerald Alexander, a four-year veteran most recently with Jacksonville.

The cornerbacks visiting were Ralph Brown, an 11-year veteran most recently with Arizona, and Geoffrey Pope, who has bounced around to Miami, Cincinnati, the New York Giants and Philadelphia since entering the NFL in 2007.

The Rams have several injuries in their secondary, but safety James Butler's knee injury appears to be the only that may sideline anyone for more than a week. So Tuesday's activity was an attempt to identify a ready list in case the Rams feel they need to make a future move.